问题描述
我对Buffers和ReadableStreams还是很陌生，所以也许这是一个愚蠢的问题.我有一个使用ReadableStream作为输入的库，但是我的输入只是base64格式的图像.我可以像这样转换Buffer中的数据:
I'm fairly new to Buffers and ReadableStreams, so maybe this is a stupid question. I have a library that takes as input a ReadableStream, but my input is just a base64 format image. I could convert the data I have in a Buffer like so:
var img = new Buffer(img_string, 'base64');
但是我不知道如何将其转换为ReadableStream或将获得的Buffer转换为ReadableStream.
But I have no idea how to convert it to a ReadableStream or convert the Buffer I obtained to a ReadableStream.
有没有办法做到这一点，还是我试图实现不可能?
Is there a way to do this or am I trying to achieve the impossible?
谢谢.
推荐答案
您可以使用创建一个ReadableStream像这样的节点流缓冲区:
// Initialize stream
var myReadableStreamBuffer = new streamBuffers.ReadableStreamBuffer({
frequency: 10, // in milliseconds.
chunkSize: 2048 // in bytes.
});
// With a buffer
myReadableStreamBuffer.put(aBuffer);
// Or with a string
myReadableStreamBuffer.put("A String", "utf8");
频率不能为0，因此会引入一定的延迟.
The frequency cannot be 0 so this will introduce a certain delay.
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